信息网络安全

信息网络安全 ›› 2017, Vol. 17 ›› Issue (1): 1-7.doi: 10.3969/j.issn.1671-1122.2017.01.001

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基于稀疏表示的云协助安全数字水印技术

肖迪(), 马青青, 王兰, 向艳萍   

  1. 重庆大学计算机学院,重庆 400044
  • 收稿日期:2016-10-28 出版日期:2017-01-20 发布日期:2020-05-12
  • 作者简介:

    作者简介： 肖迪（1975—）,男,重庆,教授,博士,主要研究方向为多媒体安全;马青青（1992—）,女,广东,硕士研究生,主要研究方向为安全压缩感知技术;王兰（1991—）,女,四川,硕士研究生,主要研究方向为密文域信号处理;向艳萍（1991—）,女,四川,博士研究生,主要研究方向为安全压缩感知技术。

  • 基金资助:
    国家自然科学基金[61572089];重庆市杰出青年科学基金[CSTC 2011jjjq40001]

Cloud-assisted Secure Digital Watermarking Based on Sparse Representation

Di XIAO(), Qingqing MA, Lan WANG, Yanping XIANG   

  1. College of Computer Science, Chongqing University, Chongqing 400044, China
  • Received:2016-10-28 Online:2017-01-20 Published:2020-05-12

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摘要：

数字水印技术作为多媒体数据安全研究中的一大分支,因其能够提供开放网络环境下的版权保护及来源认证,得到了迅速发展,并被广泛应用于各种多媒体信息的保护中。此前,大部分数字水印技术只是对载体本身提供安全保护,并没有考虑水印数据本身的安全以及验证过程的安全。而文章提出的基于稀疏表示的云协助安全数字水印方案中,数据拥有者通过在原始数据的稀疏表示上进行水印嵌入,云端利用数据拥有者和用户上传的经过矩阵乘法加密的字典、待检测信息以及模糊水印实现对多媒体数据的版权验证。文中方案不仅为水印提供安全保护,整个验证过程也是安全的,因此可以很好地适用于云验证系统。实验结果表明文中方案作为一个水印方案,具有良好的水印不可见性,在保护各方数据安全（包括水印数据）的同时可以正确验证水印,并且对噪声攻击具有良好的鲁棒性。

关键词: 安全数字水印, 云协助, 稀疏表示, 数据安全, 云验证

Abstract:

As one of the important branches of multimedia data security, digital watermarking has been developed rapidly because it can provide copyright protection and source certification for open network. Nowadays, digital watermarking has been widely used in the protection of multimedia information. Previously, most of the digital watermarking schemes do not consider the security of the watermark itself and the security of the verification process. In this paper, a secure watermarking scheme is proposed. In this scheme, the data owner uses sparse representation of the original data to embed watermark, and cloud can use the encrypted data and fuzzy watermark from the data owner and user to verify copyright. Since the scheme can provide security protection to both the watermark itself and the whole verification process, it is suitable for cloud application. The experimental results show that the proposed scheme is an invisible watermark scheme and can correctly verify copyright while protecting the data security of parties, including the watermark. Besides, the scheme has good robustness against noise attack.

Key words: secure digital watermarking, cloud-assisted, sparse representation, digital security, cloud verification

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